From 2c2d57ecab20f778bef8bf29118ca9fa598db5d9 Mon Sep 17 00:00:00 2001
From: roadmap bot <135830415+roadmap-bot@users.noreply.github.com>
Date: Sat, 17 Jun 2023 15:16:36 +0100
Subject: [PATCH] chore: add resource under cpp:functions

---
 src/data/roadmaps/cpp/content/103-functions/index.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/data/roadmaps/cpp/content/103-functions/index.md b/src/data/roadmaps/cpp/content/103-functions/index.md
index ffee81fab..fe92999d0 100644
--- a/src/data/roadmaps/cpp/content/103-functions/index.md
+++ b/src/data/roadmaps/cpp/content/103-functions/index.md
@@ -71,4 +71,6 @@ int multiplyNumbers(int x, int y) {
 }
 ```
 
-In this example, we use a function prototype for `multiplyNumbers()` before defining it. This way, we can call the function from the `main()` function even though it hasn't been defined yet in the code.
\ No newline at end of file
+In this example, we use a function prototype for `multiplyNumbers()` before defining it. This way, we can call the function from the `main()` function even though it hasn't been defined yet in the code.
+
+- [introduction to functions in c++](https://www.learncpp.com/cpp-tutorial/introduction-to-functions/)
\ No newline at end of file